Cork Janosa
cork stopper producers
An agglomerated stopper with 2mm thick ends from natural cork material, which gives better performance and superior protection against oxidation. 'A', 'B' or 'C' grading is dependent on the quality of disc used for the ends. Produced in lengths of 40 or 44mm and 23.5mm diameter, and usually supplied fully washed.
Recommended for wine storage up to 4 years, depending on storage conditions.
| PRODUCTION | ||
| Process | Extrusion at 120°C | |
| Adhesives | Polyurethane Approved by FDA | |
| JATOSY® | Granules on Autoclave System | |
| DIMENSIONAL TESTS | ||
| Length | Nom. ± 0,50 mm | NP 4351 / NP 2803-1 |
| Diameter | Nom. ± 0,40 mm | NP 4351 / NP 2803-1 |
| Ovalisation | < 0,40 mm | NP 4351 / NP 2803-1 |
| SPECIFIC TESTS | ||
| Moisture | 6,0% ± 2 | NP 4351 / NP 2803-2 |
| Specific Weigh | 280 Kg/m³ ± 40 | NP 4351 / NP 2803-1 |
| Resistance Boiling Water | No Disintegration | NP 4351 / NP 2803-7 |
| Recovery / Elasticity | > 96 % | Internal Method |
| CHEMICAL TESTS | ||
| Residual Oxidants | < 0,2 mg/cork | International/Internal Method |
| Surface Treatment | 12,5 mg/cork ± 2,5 | Internal Method |
| MECHANICAL TESTS | ||
| Extraction Force | 30 daN ± 10 | NP 4351 / NP 2803-4 |
| Sealing Test | < 2bar | Internal Method |
| Torsion: Angle | > 35° | NP 4351 / NP 2803-6 |
| Torsion: Moment | > 20 daN.cm | NP 4351 / NP 2803-6 |
| Compression Force | 70 daN ± 10 | NP 4351 / NP 2803-6 |
| MIKROBIOLOGICAL TESTS | ||
| Mikrobiology | < 4 UFC/cork | NP 3721 |
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